high school. we have not been able to verify those reports. the investigation is going to focus on the text messages, the angry, alarming text messages he sent to his family here. chris lawrence, cnn, new jersey. >> thank you very much. when the gunfire dies down, the second guessing begins and the questions about whether there's a way to stop a shooting like this is when the questions come. here to break it down is mary ellen. she's a former fbi profiler, a retired law enforcement agent with the police department. thank you for joining us. lou, on a scale of one to ten, how is the response at l.a.x. yesterday? >> exceptional. i think it's a boilerplate response now, don, regardless of where the incident takes place. it involves local agencies, federal agencies, fire, medical, air support, bomb squads.